Prime p₀= 2678445984074619257 starts a Symmetric tuple of 18 consecutive primes (SPT).
d_n: 0 6 36 8 24 42 4 14 52 14 52 14 4 42 24 8 36 6 (?)
a_n: 0 6 42 50 74 116 120 134 186 200 252 266 270 312 336 344 380 386
All 18 integers p_n = p₀+a_n = p_n-1+d_n are prime and there are no other primes in the gaps.
diameter: 386
Found by: [SG-FC] hl
db: batch=82, k=18, 6 36 8 24 42 4 14 52 14

SPT(16)	2678444373499197547	0 10 46 70 96 124 126 136 144 154 156 184 210 234 270 280	-1610575421710
SPT(13)	2678444797475921141	0 6 42 72 90 120 126 132 162 180 210 246 252	-1186598698116
STPT(10)	2678444983522747469	0 2 18 20 30 32 42 44 60 62	-1000551871788
SPT(16)	2678445091694604461	0 8 20 26 42 48 56 78 80 102 110 116 132 138 150 158	-892380014796
TPT(14)	2678445134271982919	0 2 42 44 60 62 72 74 138 140 198 200 348 350	-849802636338
SPT(16)	2678445933004329149	0 54 78 84 102 128 134 180 242 288 294 320 338 344 368 422	-51070290108
SPT(16)	2678446671539979421	0 22 28 30 82 90 100 132 148 180 190 198 250 252 258 280	687465360164
STPT(10)	2678446833387887459	0 2 18 20 30 32 42 44 60 62	849313268202
STPT(10)	2678447389182685961	0 2 36 38 78 80 120 122 156 158	1405108066704
STPT(10)	2678448080012843597	0 2 30 32 42 44 54 56 84 86	2095938224340
STPT(10)	2678448569739933719	0 2 42 44 120 122 198 200 240 242	2585665314462